/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePartyInterface.h
Set party data for a single party member and broadcast to all members Only current data can be set and no history of past party member data is preserved Party members notified of new data (see FOnPartyMemberDataReceived)
true if task was started
bool UpdatePartyMemberData ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & LocalUserId, const [FOnlinePartyId](API\Plugins\OnlineSubsystem\FOnlinePartyId) & PartyId, const [FName](API\Runtime\Core\UObject\FName) & Namespace, const [FOnlinePartyData](API\Plugins\OnlineSubsystem\Interfaces\FOnlinePartyData) & PartyMemberData )